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Understanding the Coriolis Effect
Feb 21, 2025
Lecture on the Coriolis Effect
Introduction
Explanation using a circle with center, point A, and point B.
Point A is double the distance from the center compared to point B.
Both points complete a revolution in two seconds.
Concepts of Motion
Distance and Speed
: Greater distance in the same time implies a higher speed.
Point A moves faster than point B.
Analogy with Earth
:
Points closer to the center (e.g., Greenland) spin slower than points further away (e.g., Brazil closer to the equator).
Effect of Earth's Rotation on Objects
Inertia and Movement
:
Objects maintain speed despite changes in Earth's rotational velocity.
Cloud Movement:
Forming at the equator retains Earth's velocity.
Moved north: Cloud moves faster relative to the ground.
Moved south: Cloud falls behind as ground moves faster.
Coriolis Effect and Atmospheric Phenomena
Low Pressure Cells
:
Air movement from the equator moves faster, deflects right.
Air from the poles moves slower, deflects left.
Result: Counterclockwise circular air currents in the northern hemisphere.
Example: Hurricanes.
Southern Hemisphere
:
Air from above moves faster, deflects right.
Air from below moves slower, deflects left.
Result: Clockwise spin of storms.
Miscellaneous
Coriolis Effect does not influence toilet water direction.
Spin direction depends on jet placement.
Conclusion
Summary of the Coriolis Effect.
Encouragement to like, subscribe for more content.
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Full transcript